The phrase "push too far" typically refers to a situation where someone has been pushed beyond their limits or boundaries in a way that is unacceptable or unreasonable. There are several synonyms that can be used to describe this scenario, including "crossing the line," "going too far," "overstepping," "exceeding boundaries," "pushing someone's buttons," "testing one's patience," and "going over the limit." Each of these phrases indicates that someone has been pushed to their breaking point and that their patience or tolerance has been stretched beyond what is acceptable. Using these synonyms can help to add nuance and variety to your writing or speech and convey a clearer sense of the intensity of the situation.